LTM4646Recommended for New Designs
The LTM4646 is a complete dual 10A output switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductors...
Datasheet LTM4646 on Analog.com
There is no output voltage on both channels, but there is voltage on the output of powerGood.Could this be a consequence of a forgotten resistor on the Rfreq pin? I don’t understand how PG can be, but there is no output voltage.
You are right. CPWR provides power to control circuit and it needs to be connected to Vin. A frequency set resistor is also needed at the FREQ pin. DRVCC pin needs a 4.7uF decoupling cap that puts close to this pin.